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Assembly method of large-scale thin-wall steel containment vessel and auxiliary hoisting pieces

A steel containment and assembly method technology, applied in the direction of load hanging components, transportation and packaging, etc., can solve the problems of waste of manpower, material resources and financial resources, reduce the actual lifting capacity of the crane, increase the difficulty of subsequent modules, etc., to achieve Save costs, improve effective lifting capacity, and reduce the effect of lifting workload

Inactive Publication Date: 2013-08-14
CHINA NUCLEAR IND ZHONGYUAN CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of hanging beams for hoisting has great disadvantages. First, the self-weight of the hanging beam reduces the actual lifting capacity of the crane and increases the load on the foundation.
Secondly, the use of lifting beams caused great deformation of the edge of the cylinder, which increased the difficulty of subsequent module docking work
Thirdly, the cost of the hanging beam is expensive, and the on-site installation and docking are complicated, resulting in a great waste of manpower, material resources and financial resources

Method used

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  • Assembly method of large-scale thin-wall steel containment vessel and auxiliary hoisting pieces
  • Assembly method of large-scale thin-wall steel containment vessel and auxiliary hoisting pieces
  • Assembly method of large-scale thin-wall steel containment vessel and auxiliary hoisting pieces

Examples

Experimental program
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Effect test

Embodiment 1

[0039] The assembly method of the present embodiment comprises the following steps:

[0040] Step 1. Set several lifting aids on the components to be hoisted respectively. The lifting aids include: the first lifting lug 4, the rigging 5, the distributor 6, and the adjustable pull rod;

[0041] In this embodiment, the number of lifting aids on the top head member 1 , the ring body member 2 and the bottom head member 3 is 16.

[0042] Step two, such as Figure 11 and Figure 12 As shown, one end of the casting rigging 5 is connected to the distributor 6 respectively, and the other end is connected to the adjustable tie rod respectively;

[0043] Step 3, connect the distributor 6 with the crane, and hoist the distributor 6 and the rigging 5 above the member to be hoisted;

[0044] Step 4, adjust each adjustable tie rod separately to make it extend to a certain length;

[0045] Step five, connect each adjustable pull rod to the first lifting lug 4 respectively;

[0046] Step ...

Embodiment 2

[0065] Such as Figure 5 , Figure 6 and Figure 7 As shown, the lifting aids in this embodiment include: first lifting lugs 4, slings 5, distributors 6 and adjustable aids, wherein: one end of the slings 5 ​​is connected to the distributor 6, and the other end is connected to the adjustable pull rod Connection, the adjustable pull rod is connected with the first lifting eye 4, and the distributor 6 is connected with the crane.

[0066] Such as Figure 11 and Figure 12 As shown, one end of the sling 5 is a two-ear structure, which is connected to the distributor 6, and the other end is a single-ear structure, which is connected to an adjustable pull rod.

[0067] Such as Figure 8 As shown, the first lug 4 is provided with a threading hole and one side thereof is connected with each component of the containment vessel.

[0068] Such as Figure 9 As shown, the distributor 6 includes: a fixed part 7 connected to the crane, a wire gathering part 8 connected to the sling 5...

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Abstract

The invention discloses an assembly method of a large-scale thin-wall steel containment vessel and auxiliary hoisting pieces, and belongs to the technical field of hoisting and transportation articles. The assembly method comprises the following steps of: arranging the auxiliary hoisting pieces, particularly, uniformly providing a plurality of first lifting lugs on a construction member to be hoisted of the containment vessel, preparing the corresponding riggings, connecting one ends of the riggings with a distributor respectively and the other ends of the riggings with adjustable drawbars respectively, connecting the distributor with a crane, hoisting the distributor and the riggings above the construction member to be hoisted, regulating each adjustable drawbar to enable the adjustable drawbar to extend to a proper length, and connecting each adjustable drawbar to the first lifting lugs respectively. According to the invention, the effective hoisting capability of the crane can be improved, the load of a foundation can be lightened, and deformation of each constructional element of the containment vessel can be reduced.

Description

technical field [0001] The invention relates to a method and device in the technical field of lifting and transporting objects, in particular to an assembly method of a large thin-walled steel containment vessel and its lifting auxiliary parts. Background technique [0002] Large thin-walled components, such as the steel containment modules in nuclear power plants, are difficult to hoist due to their large volume, heavy weight, thin wall thickness, deformation and stress requirements. [0003] At present, hanging beams are generally used in engineering to hoist such large thin-walled components. For example, in the construction of the nuclear island, octagonal lifting beams are used to hoist each module of the steel containment vessel. The use of hanging beams for hoisting has great disadvantages. First, the deadweight of the hanging beams reduces the actual lifting capacity of the crane and increases the load on the foundation. Secondly, the hoisting of the cylinder cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/22B66C1/12
Inventor 鲁小军郑建祥董骁武绍彭邱国志
Owner CHINA NUCLEAR IND ZHONGYUAN CONSTR
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